Raspberry pi safe?

[Edd thompson]

I am saving my pennies to build my pc that will be relatively secure and
private.
Raspberry pi b+
Cell shield add on for above
Prepaid sim (paid in cash)
Bluetooth stick
Wifi stick (looking for one with least security issues but they all seem to
be in bed with Al-Shaitain)
Lcd screen
Sdr transceiver

Punch the security holes that you see or possibly give me better
substitutes
Thanks for your time
TTFN
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://cpunks.org/pipermail/cypherpunks/attachments/20150415/e6d3b9fc/attachment.html>